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masha68 [24]
3 years ago
5

Which of the following is equivalent to 5x - x + 3x = 30? A 8x = 30 o 7x = 30 с 3x + 5= 30 x = 30​

Mathematics
2 answers:
shepuryov [24]3 years ago
8 0

Answer:

7x=30

Step-by-step explanation:

7x=30

lyudmila [28]3 years ago
4 0

Answer:

Step-by-step explanation:

5x -x + 3x =30,  first you combine like terms 5x + 3x-x=30

8x-x =30

8-1=7

7x=30

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Sergeu [11.5K]
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7 0
3 years ago
What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?
PilotLPTM [1.2K]

Answer:

15

Step-by-step explanation:

5a - 10b = 45

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3 0
3 years ago
The function T(n) is defined below. Which of the following are equal to T(8)? Check all that apply.
Firdavs [7]
You are told to choose the choices equal to T(8). T(8) means that you need to find the possible ways to write the y-value when n = 8, since 8 is being substituted in for "n."

1) First, plug in n = 8 into the equation you're given, <span>T(n) = 4n - 5:
T(8) = 4(8) - 5
T(8) = 32 - 5
T(8) = 27

That is answer choice C, making choice C correct. You can eliminate choice B, since 27 </span>≠ 37.

2) Check answer choice A. Is T(5) + T(3) = 27? 
T(5) means you need to plug in 5 for n. T(3) means you need to plug in 3 for n.
T(5) + T(3)
=  [4(5) - 5] +  [4(3) - 5]
= [20-5] + [12-5]
= 15 + 7
= 22 

Since 22 ≠ 27, you can eliminate choice A.

3) Check answer choice D. Is T(7) + 4 = 27? T(7) means you need to plug in 7 for n.
T(7) + 4 
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= 23 + 4
= 27

Since 27 = 27, answer choice D is also correct!

--------

Answer: Choice C (27) and Choice D (T(7) + 4)
 

4 0
3 years ago
I need help please help me13=w-14/2
Brilliant_brown [7]
13=w-14/2
divide 14 by 2
13=w-7
add 7 to the other side (inverse) 
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OPTIONAL: switch the equation around 
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3 0
3 years ago
Use synthetic division to divide x^3-8x^2+9x-5 by x-3
givi [52]

Answer:

x2 - 5x - 6 + -23/x-3Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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